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Finding the Fourth Proportional to 116,616.96, 160,908.48 and 68,885.28

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Solution

The fourth proportional to 116,616.96, 160,908.48 and 68,885.28 is: 95,048.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,616.96 : 160,908.48 = 68,885.28 : x
  2. Step 2: Convert to fraction form
    116,616.96/160,908.48 = 68,885.28/x
  3. Step 3: Cross multiply
    116,616.96x = 160,908.48 × 68,885.28
  4. Step 4: Simplify right side
    116,616.96x = 11,084,225,699.17
  5. Step 5: Solve for x
    x = 11,084,225,699.17/116,616.96
  6. Step 6: Final answer
    x = 95,048.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.